Summary
Updated Aug 31, 2026
Frank Porter Stansberry is Director, 10% Owner of MARKETWISE, INC. (MKTW). 8 SEC Form 4 filings on record going back to 2025, most recently on 8 June 2026. Most recent open-market trade: bought $179K of MKTW on 26 May 2026. Lifetime open-market purchases: $2.70M. Historical track record: 2/5 stars across 15 tracked purchases.
Recent Transactions
17Every recent SEC Form 4 transaction Frank Porter Stansberry has reported, most recent first.
Track Record
InsiderAlpha computes a forward-return-based score for every insider with enough Form 4 purchase history. The metrics below reflect realized performance after each tracked open-market purchase.
| Metric | Value |
|---|---|
| InsiderAlpha rating | ★★☆☆☆ (2/5) |
| Total purchases tracked | 15 |
| Purchases with forward-return data | 15 |
| 30-day win rate | 40% |
| 90-day win rate | 100% |
| Avg 5-day return | -1.20% |
| Avg 30-day return | -3.55% |
| Avg 90-day return | +9.70% |
| Best 30-day return | +15.07% |
Trading Pattern
InsiderAlpha's records for Frank Porter Stansberry go back to 2025: 8 primary Form 4 filings, an average of 4.0 per year. The typical open-market purchase is $180K (15 buys totaling $2.70M). The largest single buy on record is $371K of MKTW in 2026. No transaction on record carries a Rule 10b5-1 flag - the filings look discretionary rather than pre-scheduled, which makes their timing more informative as a signal.
Other Insiders Active in the Same Stocks
Insiders who reported open-market trades in the last 12 months at the companies Frank Porter Stansberry files at. Multiple unrelated insiders buying the same stock within a short window, cluster buying, has historically been one of the strongest Form 4 signals.
- Erik Mickels - $453K of MKTW open-market activity in the last 12 months
- Marco Galsim - $63K of MKTW open-market activity in the last 12 months
- Scott Daniel Forney - $14K of MKTW open-market activity in the last 12 months
More Notable Insiders
Other corporate insiders with significant SEC Form 4 track records on InsiderAlpha:
Frequently Asked Questions
Who is Frank Porter Stansberry?
Frank Porter Stansberry is a corporate insider, tracked as Director, 10% Owner of MARKETWISE, INC. (MKTW). InsiderAlpha holds 8 primary Form 4 filings for them, the earliest from 2025, updated as new SEC EDGAR filings are processed.
How many SEC Form 4 filings has Frank Porter Stansberry submitted recently?
1 primary Form 4 filing in the last 90 days, covering 1 company.
Has Frank Porter Stansberry been buying or selling stock?
Recorded transactions: 15 open-market purchases ($2.70M) and 0 open-market sales across all tracked filings.
How accurate is Frank Porter Stansberry's historical track record?
Across 15 tracked purchases, Frank Porter Stansberry averaged -3.5% avg 30-day return with a 40% 30-day win rate. InsiderAlpha rates the track record at 2/5 stars.
Where can I see all of Frank Porter Stansberry's SEC filings?
All Form 4 filings, transaction values, and 10b5-1 plan flags are listed on this page and updated in real time as new SEC EDGAR filings are processed.
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